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1、雅思听力读题技巧雅思阅读题的3大技巧全总结做雅思阅读的时候学会总结很重要，今天WTT给大家带来了雅思阅读题的3大技巧全总结，希望能帮助到大家，下面WTT就和大家分享，来欣赏一下吧。阅读大作战 雅思阅读题的3大技巧全总结第一，积累一定的词汇量。大家要正确认识和有效进步词汇量。建议同学们根据考试选材的常见类别进展相应的专题复习，并运用一定的记单词的技巧，单词量是可以在短期内有效进步的。另外，虽然很多同学的单词量还行，但是单词的词形却没有分清楚，虽然说词形对考试来说不是很重要，但是请大家也不要忽略这个问题，在记单词的时候大家多留点心就把词形的问题解决了。第二，熟悉背景知识。从语言学的角度来看，雅思阅
2、读其实考察的也有背景知识，建议大家多看看国家地理，探究频道，BBC等节目，多积累一些知识，结合考试的常见题材加以学习，假设能持之以恒，必有达成。第三，熟悉语法。语法就相当于英语的经络，假如经脉不通，隐藏的病症就会郁积的越厉害，发作之时如燎原之势必然一发不可拾掇。没有语法的词汇就像是脱缰的野马，散落的珍珠，无法够成一个有力的整体，发挥不了原有的效力，希望大家可以活用语法，判断清楚句子的主谓宾，仔细分析p 句子的构造。雅考虑试阅读模拟练习及答案Dont wash those fossils!Standard museum practice can wash away DNA.1.Washing，
3、brushing and varnishing fossils all standard conservationtreatments used by many fossil hunters and museum curators alike vastlyreduces the chances of recovering ancient DNA.2.Instead， e_cavators should be handling at least some of their bounty withgloves， and freezing sles as they are found， dirt a
4、nd all， concludes a paperin the Proceedings of the National Academy of Sciences today.3.Although many palaeontologists know anecdotally that this is the best wayto up the odds of e_tracting good DNA， Eva-Maria Geigl of the Jacques MonodInstitute in Paris， France， and her colleagues have now shown ju
5、st how importantconservation practices can be.This information， they say， needs to be hammeredhome among the people who are actually out in the field digging up bones.4.Geigl and her colleagues looked at 3，20_-year-old fossil bones belongingto a single individual of an e_tinct cattle species， called
6、 an aurochs.Thefossils were dug up at a site in France at two different times either in 1947，and stored in a museum collection， or in 20_4， and conserved in sterileconditions at -20 oC.5.The teams attempts to e_tract DNA from the 1947 bones all failed.Thenewly e_cavated fossils， however， all yielded
7、 DNA.6.Because the bones had been buried for the same amount of time， and in thesame conditions， the conservation method had to be to blame says Geigl.“As muchDNA was degraded in these 57 years as in the 3，20_years before，” she says.Wash in， wash out7.Because many palaeontologists base their work on
8、 the shape of fossilsalone， their methods of conservation are not designed to preserve DNA， Geigle_plains.8.The biggest problem is how they are cleaned.Fossils are often washedtogether on-site in a large bath， which can allow water and contaminants inthe form of contemporary DNA to permeate into the
9、 porous bones.“Not only isthe authentic DNA getting washed out， but contamination is getting washed in，”says Geigl.9.Most ancient DNA specialists know this already， says Hendrik Poinar， anevolutionary geicist at McMaster University in Ontario， Canada.But thatdoesnt mean that best practice has bee wi
10、despread among those who actuallyfind the fossils.10.Getting hold of fossils that have been preserved with their DNA in mindrelies on close relationships between lab-based geicists and the e_cavators，says palaeogeicist Svante P bo of the Ma_ Planck Institute for EvolutionaryAnthropology in Leipzig，
11、Germany.And that only occurs in e_ceptional cases， hesays.11.P bos team， which has been sequencing Neanderthal DNA， continually facesthese problems.“When you want to study ancient human and Neanderthal remains，theres a big issue of contamination with contemporary human DNA，” he says.12.This doesnt m
12、ean that all museum specimens are fatally flawed， notes Pbo.The Neanderthal fossils that were recently sequenced in his own lab， fore_le， had been part of a museum collection treated in the traditional way.But P bo is keen to see sles of fossils from every major find preserved inline with Geigls rem
13、endations just in case.Warm and wet13.Geigl herself believes that， with cooperation between bench and fieldresearchers， preserving fossils properly could open up avenues of discovery thathave long been assumed closed.14.Much human cultural development took place in temperate regions.DNA doesnot surv
14、ive well in warm environments in the first place， and can vanish whenfossils are washed and treated.For this reason， Geigl says， most ancient DNAstudies have been done on permafrost sles， such as the woolly mammoth， or onremains sheltered from the elements in cold caves including cave bear andNeande
15、rthal fossils.15.Better conservation methods， and a focus on fresh fossils， could boostDNA e_traction from more delicate specimens， says Geigl.And that could shedmore light on the story of human evolution.(640 words nature )GlossaryPalaeontologists 古生物学家Aurochs 欧洲野牛Neanderthal (人类学)尼安德特人，旧石器时代的古人类。P
16、ermafrost (地理)永冻层Questions 1-6Answer the following questions by using NO MORE THAN THREE WORDS for eachanswer.1.How did people traditionally treat fossils?2.What suggestions do Geigl and her colleagues give on what should be donewhen fossils are found?3.What problems may be posed if fossil bones are
17、 washed on-site? NameONE.4.What characteristic do fossil bones have to make them susceptible to becontaminated with contemporary DNA when they are washed?5.What could be better understood when conservation treatments areimproved?6.The passage mentioned several animal species studied by researchers.H
18、owmany of them are mentioned?Questions 7-11Do the following statements agree with the information given in the passage?Please writeTRUE if the statement agrees with the writerFALSE if the statement does not agree with the writerNOT GIVEN if there is no information about this in the passage7.In their
19、 paper published in the Proceedings of the National Academy ofSciences ， Geigl and her colleagues have shown what conservation practicesshould be followed to preserve ancient DNA.8.The fossil bones that Geigl and her colleagues studied are all from thesame aurochs.9.Geicists dont have to work on sit
20、e.10.Only newly e_cavated fossil bones using new conservation methodssuggested by Geigl and her colleagues contain ancient DNA.11.Paabo is still worried about the potential problems caused by treatmentsof fossils in traditional way.Questions 12-13plete the following the statements by choosing letter
21、 A-D for eachanswer.12.“This information” in paragraph 3 indicates：A It is critical to follow proper practices in preserving ancient DNA.B The best way of getting good DNA is to handle fossils with gloves.C Fossil hunters should wear home-made hammers while digging up bones.D Many palaeontologists k
22、now how one should do in treating fossils.13.The study conducted by Geigl and her colleagues suggests：A the fact that ancient DNA can not be recovered from fossil bonese_cavated in the past.B the correlation between the amount of burying time and that of therecoveredDNA.C the pace at which DNA degra
23、des.D the correlation between conservation practices and degradation ofDNA.Suggested answers and e_planations1.washing， brushing， varnishing 见第一段。2.handling with gloves / freezing sles ( any one of the two ) 见第二段。3.losing authentic DNA / being contaminated / contamination ( any one of thethree) 见第八段
24、 “Not only is the authentic DNA getting washed out， but contaminationis getting washed in” (答being contaminated或 contamination比拟保险)4.they are porous porous 的意思是多孔的。见第八段 “。 which can allow water andcontaminants in the form of contemporary DNA to permeate into the porousbones.”5.human evolution 见第十五段。
25、其中“shed light on sth”的意思是使某事显得非常清楚，使人理解某事。6.4 分别为第四段的“an e_tinct cattle species， called an aurochs”，即欧洲野牛，已经绝迹;第十一段“Neanderthal”， 是人类学用语，尼安德特人，旧石器时代的古人类;第十四段“woolly mammoth”和“cavebear”，其中mammoth是猛犸，一种古哺乳动物。7.T 见第二段。8.T 见第四段 “Geigl and her colleagues looked at 3，20_-year- old fossil bonesbelonging to
26、 a single individual of an e_tinct cattle species， called anaurochs.” 即他们研究的骨化石是一头欧洲野牛身上的。9.NG10.F 见第十二段第一、二句话。11.T 见第十二段末句 “But P bo is keen to see sles of fossils from every majorfind preserved in line with Geigls remendations just in case.”意即为保险起见，Paabo还是非常希望见到用Geigl建议的方法保存的化石样本。“just in case”的意思是以防万一，就是Paabo对用传统保存处理的化石不放心的意思。12.A 见第三段。This information就是前一句中 “。 just how important conservationpractices can be” (to preserve good DNA)。“be hammered”之中hammer一词的意思是不断重复强调。13.D 面信息。需要理解文章各处关于Geigl和她的同事所作的研究雅思阅读题的3大技巧全总结第 11 页 共 11 页